How To Find out the Factors of 45
We have to find the factors of number 45. Factors are the numbers which when divided by number 45 we get the factors.
When we make pair of factors the multiplication of pair of factors gives the given number.
Steps to find Factors of 45:
1) Firstly we divide given number 45 to get remainder 0.
2) After getting answers all numbers we get are called Factors of given number.
3) 1 is the only number having factor of all numbers.
4) The given number itself is the highest factor of given number.
We find factors of 45:
Here,
We get factors of 45 are 1, 5, 9 and 45.
We know,
A number which has more than two factors is called composite number.
A number 45 has more than two factors.
Hence, 45 is composite number.
Also
We know,
A number which is not divided by any other number is called prime number.
In factors of 45 we get 5and 9 are the prime number.
Now we find prime factorization of 45 by using LCM.
Prime factors of 45 = 5 x 9
There are 4 factors of 45 i.e. 1, 5, 9and 45.
When we make pairs of factors the multiplication of that two factors is the given number itself.
Pairs of factors of 45: 1 x 45, 5 x 9.
Pairs of factors of 45: (1, 45) and (5, 9)
We know Multiplication Property,
a x b = b x a
I.e. Pairs of factors of 45: (45, 1) and (9, 5) is also same.
- All factors of 45 = 1, 5, 9, 45.
- Prime factor of 45 = 5 x 9
- Sum of all factors of 45 = 1 + 5 + 9 + 45 = 60
- Pairs of factors of 45: (1, 45) and (5,9) also (45, 1) and (9, 5)